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Paper Abstract and Keywords
Presentation 2021-06-25 14:00
A Theoretical Study on Suboptimal Joint Transmit-Receive Diversity In Correlated Rayleigh Fading Channels
Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2021-73
Abstract (in Japanese) (See Japanese page) 
(in English) Joint transmit-receive diversity (JTRD) jointly optimizes transmitter and receiver diversity weight vectors to maximize the composite channel gain. On the other hand, in suboptimal JTRD, the receiver determines its diversity weight vector first and then, the transmitter determines its diversity weight vector so as to maximize the resultant composite channel gain assuming the receiver diversity weight vector. In this paper, suboptimal JTRD is considered since theoretical analysis of optimal JTRD is quite difficult if not impossible. Two types of suboptimal JTRD are considered: maximal ratio combining (MRC) and selection combining (SC) at the receiver. Closed-form expressions are theoretically derived for the distribution of received signal-to-noise ratio (SNR) and its probability distribution achievable by suboptimal JTRD in correlated Rayleigh fading channels. It is theoretically shown that if the number of transmitter antennas is fairly large compared to that of receiver, the fading correlation experienced by the receiver antennas improves the channel capacity compared to the case of uncorrelated Rayleigh fading channels. This is confirmed by the Monte-Carlo numerical evaluation using the derived closed-form SNR expressions.
Keyword (in Japanese) (See Japanese page) 
(in English) Joint transmit-receive diversity / MIMO channel / fading correlation / Rayleigh fading / / / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 72, RCS2021-73, pp. 255-260, June 2021.
Paper # RCS2021-73 
Date of Issue 2021-06-16 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee RCS  
Conference Date 2021-06-23 - 2021-06-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Paper Information
Registration To RCS 
Conference Code 2021-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Theoretical Study on Suboptimal Joint Transmit-Receive Diversity In Correlated Rayleigh Fading Channels 
Sub Title (in English)  
Keyword(1) Joint transmit-receive diversity  
Keyword(2) MIMO channel  
Keyword(3) fading correlation  
Keyword(4) Rayleigh fading  
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1st Author's Name Fumiyuki Adachi  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Ryo Takahashi  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2021-06-25 14:00:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2021-73 
Volume (vol) vol.121 
Number (no) no.72 
Page pp.255-260 
#Pages
Date of Issue 2021-06-16 (RCS) 


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